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Construction ERP · RAG2026

Wally Co

Built the LangChain + Pinecone RAG system for instant blueprint document retrieval and the Konva.js canvas engine for live site annotations. Also developed the React project dashboards and Flutter field workflows.

Website
Role
Full Stack Engineer - AI RAG assistant, Konva engine, React dashboards
Timeline
2026
Stack
ReactFlutterNode.jsLangChainPinecone (RAG)Konva.jsAWS
01

Screens & Architecture

RAG document assistant
Screen 01 · RAG document assistant
Konva blueprint annotation
Screen 02 · Konva blueprint annotation
02

The Problem

Construction field teams struggled to retrieve specs from massive blueprint collections and mark up revisions in real-time on site.

03

How I built it

  • Built a LangChain + Pinecone RAG system that retrieves and summarizes complex site documents for field teams in seconds.
  • Built a canvas-based drawing engine with Konva.js for live blueprint annotations and visual site markups.
  • Developed responsive React project management dashboards and Flutter mobile workflows for field collaboration.
04

Outcome

  • Blueprint document retrieval for field teams now happens in seconds with instant AI RAG synthesis.
  • Site markups streamlined through interactive Konva blueprint drawing tools.